Update test expectations for update-bytecheck.https.html

This is failing because we don't support byte-for-byte update check
to all service worker importScript() resources. Update test expectations
to point an appropriate bug entry and remove the entry from S13nSW
expectation as this failure isn't specific to S13nSW.

Bug: 648295
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_mojo
Change-Id: I65dca2a31baa500ae8f1d347af8c77d9e9fd8c29
Reviewed-on: https://chromium-review.googlesource.com/991472
Reviewed-by: Matt Falkenhagen <falken@chromium.org>
Commit-Queue: Kenichi Ishibashi <bashi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#547643}
2 files changed